Naslov
Hybrid Modeling for Optimal Control of a Linear Switched Reluctance Generator Used in a Direct Drive Wave Energy Converter

Autori
Vašak, Mario ; Žarko, Damir ; Perić, Nedjeljko ; Chen, Hao

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 3rd International Conference on Ocean Energy / - Bilbao, 2010

ISBN
978-84-693-5467-4

Skup
3rd International Conference on Ocean Energy (ICOE 2010)

Mjesto i datum
Bilbao, Španjolska, 06.10.2010. - 08.10.2010

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
direct drive wave energy converter; linear switched reluctance generator; discrete-time piecewise affine model; hybrid model

Sažetak
In this paper a linear switched reluctance generator used in a direct drive wave energy converter is considered for modeling and model- based optimal control. Linear switched reluctance generators (LSRGs) are highly nonlinear electromechanical converters which must be adequately controlled in order to achieve a satisfactory energy conversion efficiency. In order to pave the way for a systematic design of a control strategy that directly addresses the wave energy converter efficiency maximization and respects system constraints, the discrete-time piecewise affine (DTPWA) hybrid model form is proposed to model the considered LSRG in the configuration with a power converter. The procedure of obtaining a hybrid DTPWA model itself is also pursued in a systematic way, by employing clustering-based piecewise affine fitting of nonlinear characteristics of the considered LSRG, which are in turn computed from the generator geometry using finite element analysis methods. The hybrid DTPWA model is validated on the starting nonlinear LSRG model.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Temeljne tehničke znanosti

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